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Stories with person: Dick Costolo
  • Twitter stock tumbles as user growth stalls 
    Updated: Jul-29-15 3:11 pm

    NEW YORK - Tepid user growth and ongoing uncertainty about its leadership dragged Twitter's stock to its lowest level in over a year Wednesday, even though the short-messaging service reported sharply quarterly higher revenue.

  • Twitter 2Q revenue grows sharply but user growth stays slow story has photos
    Updated: Jul-28-15 6:34 pm

    NEW YORK - Twitter failed to add users at a quick enough pace for investors in the second quarter even as revenue grew sharply, feeding concerns about whether it can ever become a mass-market service like Facebook or Google.

  • Fake story on buyout sends Twitter stock briefly higher story has photos
    Updated: Jul-14-15 6:31 pm

    NEW YORK - Twitter's stock briefly spiked on Tuesday after a fake story said the short messaging service received a $31 billion buyout offer.